When the Rangers staged their first minor-league intrasquad game on Saturday, there was one revelation even greater than Director of Minor League Operations Paul Kruger calling balls and strikes (from behind the mound, in a hoodie and khaki pants): shortstop Anderson Tejeda, contrary to his bio in the Rangers’ 2019 media guide, is now switch-hitting shortstop Anderson Tejeda.

As the 20-year-old completed a breakout season at the plate and in the field for High-A Down East last summer, a quiet effort was underway to convert the left-handed hitter — if the experiment worked — into a threat from both sides of the plate.

Tejeda, ranked by Baseball America as the Rangers’ No. 5 prospect, had nearly doubled his career best with 19 home runs in 2018, made even more pronounced advances defensively and hit .259/.331/.439. But that line included an .873 OPS against righthanders and only a .482 clip against lefties. Roving Minor League Hitting Coordinator Josue Perez...